<template>
  <div>
    <div style="margin-bottom: 5px;">
      <el-input v-model="name" placeholder="请输入年级名" suffix-icon="el-icon-search" style="width: 200px;"
                @keyup.enter.native="loadPost"></el-input>
      <el-select v-model="faculty" filterable placeholder="请选择学院名" style="margin-left: 5px;">
        <el-option
          v-for="item in facultyData"
          :key="item.id"
          :label="item.name"
          :value="item.id">
        </el-option>
      </el-select>
      <el-button type="primary" style="margin-left: 5px;" @click="loadPost">查询</el-button>
      <el-button type="success" @click="resetParam">重置</el-button>

      <el-button type="primary" style="margin-left: 5px;" @click="add">新增</el-button>
    </div>
    <el-table :data="tableData"
              :header-cell-style="{ background: '#f2f5fc', color: '#555555' }"
              border
    >
      <el-table-column prop="id" label="ID" width="60">
      </el-table-column>
      <el-table-column prop="name" label="年级" width="180">
      </el-table-column>
      <el-table-column prop="faculty" label="学院" width="180" :formatter="formatFaculty">

      </el-table-column>
      <el-table-column prop="operate" label="操作">
        <template slot-scope="scope">
          <el-button size="small" type="success" @click="mod(scope.row)">编辑</el-button>
          <el-popconfirm
            title="确定删除吗？"
            @confirm="del(scope.row.id)"
            style="margin-left: 5px;"
          >
            <el-button slot="reference" size="small" type="danger" >删除</el-button>
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>
    <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="pageNum"
      :page-sizes="[5, 10, 20,30]"
      :page-size="pageSize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>

    <el-dialog
      title="提示"
      :visible.sync="centerDialogVisible"
      width="30%"
      center>

      <el-form ref="form" :rules="rules" :model="form" label-width="80px">

        <el-form-item label="年级名" prop="name">
          <el-col :span="20">
            <el-input v-model="form.name"></el-input>
          </el-col>
        </el-form-item>
        <el-form-item label="学院" prop="faculty">
          <el-col :span="20">
            <el-select v-model="form.faculty" filterable placeholder="请选择学院名" style="margin-left: 5px;">
              <el-option
                v-for="item in facultyData"
                :key="item.id"
                :label="item.name"
                :value="item.id">
              </el-option>
            </el-select>
          </el-col>
        </el-form-item>

      </el-form>
      <span slot="footer" class="dialog-footer">
    <el-button @click="centerDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="save">确 定</el-button>
  </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: "SClass",
  data() {
    let checkAge = (rule, value, callback) => {
      if(value>150){
        callback(new Error('年龄输入过大'));
      }else{
        callback();
      }
    };
    let checkDuplicate =(rule,value,callback)=>{
      if(this.form.id){
        return callback();
      }
    };

    return {
      tableData:[],
      facultyData:[],
      faculty:'',
      pageSize:10,
      pageNum:1,
      total:0,
      name:'',
      centerDialogVisible:false,
      form:{
        id:'',
        name:'',
        faculty:'',
      },
      rules: {
        name: [
          {required: true, message: '请输入班级名', trigger: 'blur'}
        ],
        faculty: [
          {required: true, message: '请输入学院', trigger: 'blur'}
        ],
      }
    }
  },
  methods:{

    formatFaculty(row){
      let temp = this.facultyData.find(item=>{
        return item.id=row.faculty
      })

      return temp && temp.name
    },

    resetForm() {
      this.$refs.form.resetFields();
    },

    del(id){
      console.log(id)

      this.$axios.get(this.$httpUrl+'/grade/del?id='+id).then(res=>res.data).then(res=>{
        console.log(res)
        if(res.code==200){

          this.$message({
            message: '操作成功！',



            type: 'success'
          });
          this.loadPost()
        }else{
          this.$message({
            message: '操作失败！',
            type: 'error'
          });
        }

      })
    },

    mod(row){
      console.log(row)

      this.centerDialogVisible = true
      this.$nextTick(()=>{
        //赋值到表单
        this.form.id = row.id
        this.form.name = row.name
        this.form.faculty = row.faculty+''
      })
    },
    add(){
      this.centerDialogVisible = true
      this.form.id = ''
      this.$nextTick(()=>{
        this.resetForm()
      })

    },
    doSave(){
      this.$axios.post(this.$httpUrl+'/grade/save',this.form).then(res=>res.data).then(res=>{
        console.log("doSave"+res.data)
        if(res.code==200){

          this.$message({
            message: '操作成功！',
            type: 'success'
          });
          this.centerDialogVisible = false
          this.loadPost()
          this. resetForm()
        }else{
          this.$message({
            message: '操作失败！',
            type: 'error'
          });
        }

      })
    },
    doMod(){
      this.$axios.post(this.$httpUrl+'/grade/update',this.form).then(res=>res.data).then(res=>{
        console.log("doMod"+res)
        if(res.code==200){

          this.$message({
            message: '操作成功！',
            type: 'success'
          });
          this.centerDialogVisible = false
          this.loadPost()
          this. resetForm()
        }else{
          this.$message({
            message: '操作失败！',
            type: 'error'
          });
        }

      })
    },
    save(){
      this.doMod();
    },
    handleSizeChange(val) {
      console.log(`每页 ${val} 条`);
      this.pageNum=1
      this.pageSize=val
      this.loadPost()
    },
    handleCurrentChange(val) {
      console.log(`当前页: ${val}`);
      this.pageNum=val
      this.loadPost()
    },
    loadGet(){
      this.$axios.get(this.$httpUrl+'/grade/list').then(res=>res.data).then(res=>{
        console.log(res)
      })
    },
    resetParam(){
      this.name=''
      this.faculty=''
    },
    loadFaculty(){
      this.$axios.get(this.$httpUrl+'/faculty/list').then(res=>res.data).then(res=>{
        console.log(res)
        if(res.code==200){
          this.facultyData=res.data
        }else{
          alert('获取数据失败')
        }

      })
    },
    loadPost(){
      this.$axios.post(this.$httpUrl+'/grade/listPage',{
        pageSize:this.pageSize,
        pageNum:this.pageNum,
        param:{
          name:this.name,
          faculty:this.faculty+''
        }
      }).then(res=>res.data).then(res=>{
        console.log(res)
        if(res.code==200){
          this.tableData=res.data
          this.total=res.total
        }else{
          alert('获取数据失败')
        }

      })
    }
  },
  beforeMount() {
    //this.loadGet();
    this.loadPost()
    this.loadFaculty()
  }
}
</script>

<style scoped>

</style>
